text: /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
  /*
   * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
   *                         University Research and Technology
   *                         Corporation.  All rights reserved.
   * Copyright (c) 2004-2018 The University of Tennessee and The University
   *                         of Tennessee Research Foundation.  All rights
   *                         reserved.
   * Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
   *                         University of Stuttgart.  All rights reserved.
   * Copyright (c) 2004-2005 The Regents of the University of California.
   *                         All rights reserved.
   * Copyright (c) 2007      Cisco Systems, Inc.  All rights reserved.
   * Copyright (c) 2012-2013 Los Alamos National Security, LLC.  All rights
   *                         reserved.
   * Copyright (c) 2014-2016 Research Organization for Information Science
   *                         and Technology (RIST). All rights reserved.
   * $COPYRIGHT$
   *
   * Additional copyrights may follow
   *
   * $HEADER$
   */
  
  #include "ompi_config.h"
  #include <stdio.h>
  
  #include "ompi/mpi/c/bindings.h"
  #include "ompi/runtime/params.h"
  #include "ompi/communicator/communicator.h"
  #include "ompi/errhandler/errhandler.h"
  #include "ompi/datatype/ompi_datatype.h"
  #include "ompi/memchecker.h"
  #include "ompi/runtime/ompi_spc.h"
  
  #if OMPI_BUILD_MPI_PROFILING
  #if OPAL_HAVE_WEAK_SYMBOLS
  #pragma weak MPI_Ialltoallw = PMPI_Ialltoallw
  #endif
  #define MPI_Ialltoallw PMPI_Ialltoallw
  #endif
  
  static const char FUNC_NAME[] = "MPI_Ialltoallw";
  
  
  int MPI_Ialltoallw(const void *sendbuf, const int sendcounts[], const int sdispls[],
                     const MPI_Datatype sendtypes[], void *recvbuf, const int recvcounts[],
                     const int rdispls[], const MPI_Datatype recvtypes[], MPI_Comm comm,
                     MPI_Request *request)
  {
      int i, size, err;
  
      SPC_RECORD(OMPI_SPC_IALLTOALLW, 1);
  
      MEMCHECKER(
          ptrdiff_t recv_ext;
          ptrdiff_t send_ext;
  
  
          memchecker_comm(comm);
  
          size = OMPI_COMM_IS_INTER(comm)?ompi_comm_remote_size(comm):ompi_comm_size(comm);
          for ( i = 0; i < size; i++ ) {
              if (MPI_IN_PLACE != sendbuf) {
                  memchecker_datatype(sendtypes[i]);
                  ompi_datatype_type_extent(sendtypes[i], &send_ext);
                  memchecker_call(&opal_memchecker_base_isdefined,
                                  (char *)(sendbuf)+sdispls[i]*send_ext,
                                  sendcounts[i], sendtypes[i]);
              }
  
              memchecker_datatype(recvtypes[i]);
              ompi_datatype_type_extent(recvtypes[i], &recv_ext);
              memchecker_call(&opal_memchecker_base_isaddressable,
                              (char *)(recvbuf)+rdispls[i]*recv_ext,
                              recvcounts[i], recvtypes[i]);
          }
      );
  
      if (MPI_PARAM_CHECK) {
  
          /* Unrooted operation -- same checks for all ranks */
  
          err = MPI_SUCCESS;
          OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
          if (ompi_comm_invalid(comm)) {
              return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
                                            FUNC_NAME);
          }
  
          if (MPI_IN_PLACE == sendbuf) {
              sendcounts = recvcounts;
              sdispls    = rdispls;
              sendtypes  = recvtypes;
          }
  
          if ((NULL == sendcounts) || (NULL == sdispls) || (NULL == sendtypes) ||
              (NULL == recvcounts) || (NULL == rdispls) || (NULL == recvtypes) ||
              (MPI_IN_PLACE == sendbuf && OMPI_COMM_IS_INTER(comm)) ||
              MPI_IN_PLACE == recvbuf) {
              return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
          }
  
          size = OMPI_COMM_IS_INTER(comm)?ompi_comm_remote_size(comm):ompi_comm_size(comm);
          for (i = 0; i < size; ++i) {
              OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtypes[i], sendcounts[i]);
              OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
              OMPI_CHECK_DATATYPE_FOR_RECV(err, recvtypes[i], recvcounts[i]);
              OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
          }
  
          if (MPI_IN_PLACE != sendbuf && !OMPI_COMM_IS_INTER(comm)) {
              int me = ompi_comm_rank(comm);
              size_t sendtype_size, recvtype_size;
              ompi_datatype_type_size(sendtypes[me], &sendtype_size);
              ompi_datatype_type_size(recvtypes[me], &recvtype_size);
              if ((sendtype_size*sendcounts[me]) != (recvtype_size*recvcounts[me])) {
                  return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TRUNCATE, FUNC_NAME);
              }
          }
      }
  
      OPAL_CR_ENTER_LIBRARY();
  
      /* Invoke the coll component to perform the back-end operation */
      err = comm->c_coll->coll_ialltoallw(sendbuf, sendcounts, sdispls,
                                         sendtypes, recvbuf, recvcounts,
                                         rdispls, recvtypes, comm, request,
                                         comm->c_coll->coll_ialltoallw_module);
      OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
  }
  
  